Is there a public exploit for CVE-2026-74860?

No public exploit for CVE-2026-74860 was found in Exploit-DB, Metasploit, Nuclei templates or public proof-of-concept repositories. That is an absence of evidence rather than proof that none exists.

How severe is CVE-2026-74860?

CVE-2026-74860 scores CVSS 8.5 (v3.1), rated high. EPSS puts the chance of exploitation in the next 30 days at 0.66%.

What does CVE-2026-74860 affect?

CVE-2026-74860 affects Red Hat Cert Manager support for Red Hat OpenShift release 1.20, Red Hat OpenShift AI 3.0, Red Hat Update Infrastructure 5, Red Hat OpenShift AI 3.5, Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support, Red Hat OpenShift AI 3.4.

8.5 High

A flaw was found in libxml2 with Python bindings enabled.

CVE-2026-74860

A flaw was found in libxml2 with Python bindings enabled. A remote attacker could exploit this vulnerability by providing a specially crafted XML document containing a Document Type Definition (DTD) with enumerated attribute values. This triggers a double-free error in the SAX attributeDecl callback handler, where a string is freed twice. This flaw can lead to a denial of service (DoS) due to a reproducible crash in Python applications using the libxml2 SAX bindings.

Assessment

CVSS: 8.5 (v3.1)
Severity: High
EPSS: 0.66% chance of exploitation in the next 30 days
Known exploited: Not listed in CISA KEV
Exploit availability: Nothing found in Exploit-DB, Metasploit, Nuclei or public PoC repositories
Published: 8 September 2026
Last updated: 2 November 2026
Affected: Red Hat · Cert Manager support for Red Hat OpenShift release 1.20 · Red Hat Cost Management On-Premise 1 · Red Hat Enterprise Linux 10 · Red Hat Enterprise Linux 10.0 Extended Update Support
Assigner: redhat

CVSS vectorCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H

At the source

EUVD (ENISA)

References

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